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What are the possible failure modes of chain transmission?

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Engrenage
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2024-03-22

gearing

The Failure Forms of Chain Transmission
1. Fatigue failure of chains
2. After a certain number of cycles, the chain plate will fracture due to fatigue
3. The surface of the sleeve and roller will experience fatigue pitting due to impact
4. The fatigue strength of the chain is the main factor determining the load-bearing capacity of the chain transmission
5. The wear of the chain hinges increases the chain pitch and the total length of the chain
6. Change the sag of the loose edge of the chain
7. Increase the unevenness of motion and dynamic load, causing tooth jumping
8. The bonding of chain hinges to a certain extent limits the maximum speed of chain transmission
9. Static failure of chains
10. When the chain speed is low (vvv<0.6 m/s), if the chain load does not increase and the deformation continues to increase, it is considered that the chain is being damaged
11. The minimum load that causes continuous increase in chain deformation will limit the maximum load that the chain can withstand
C

    • Miller

      2024-03-23
      The vast majority of chain or sprocket teeth are broken or worn due to various reasons.
If asked about the cause of failure, it is nothing more than manufacturing defects [cracks, slag pockets, etc. caused by metallographic defects, excessive internal stress after machining and heat treatment], lack of lubrication [wear of chain sprocket teeth], harsh working environment mixed with foreign objects [entering a stone and breaking the chain]
The probability is small, but it is also possible that the design power of the chain drive is small, resulting in failure when transmitting large power
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      • Darren

        2024-03-23
        The failure of chain transmission is generally the failure of the chain, and common failure forms include: 1. fatigue failure, 2. hinge wear, 3. impact fatigue failure, 4. hinge bonding, 5. overload forging fracture
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